US PATENT SUBCLASS 417 / 312
WITH MUFFLER ACTING ON PUMP FLUID

Current as of: June, 1999
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417 /   HD   PUMPS

312WITH MUFFLER ACTING ON PUMP FLUID

DEFINITION

Classification: 417/312

(under the class definition) Apparatus including means to attenuate sound created by operation of the pump, said means acting upon the pump fluid to accomplish the attenuation.

SEE OR SEARCH CLASS

181, Acoustics,

403, for refrigerator compressor mufflers.